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| author | Aaron Durbin <adurbin@chromium.org> | 2015-05-12 16:46:27 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2015-05-13 15:39:54 +0200 |
| commit | 0a50d9b35334d03f13b38e21497ba0aae8b16712 (patch) | |
| tree | 492dcd3274147e794f6fb6386b6c951d5821bf33 | |
| parent | 1f04e94b7915ce599e49a71fd38cb72523c9c887 (diff) | |
| download | coreboot-0a50d9b35334d03f13b38e21497ba0aae8b16712.tar.xz | |
libpayload: x86: correct types used for IO
libpayload on x86 defines u32 and uint32_t as typedefs of
unsigned int. However, the readl/writel routines use long.
With alias checking this throws type punning errors. Align
the readl/writel/inl/outl types with the 32-bit fixed width
ones that are exposed.
Change-Id: Ie51cff8af4596948f6132e3cb743f1bc4ea8f204
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10186
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
| -rw-r--r-- | payloads/libpayload/include/x86/arch/io.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/payloads/libpayload/include/x86/arch/io.h b/payloads/libpayload/include/x86/arch/io.h index 0cb610fcc3..cd48d7c35b 100644 --- a/payloads/libpayload/include/x86/arch/io.h +++ b/payloads/libpayload/include/x86/arch/io.h @@ -33,13 +33,13 @@ #define readb(_a) (*(volatile const unsigned char *) (_a)) #define readw(_a) (*(volatile const unsigned short *) (_a)) -#define readl(_a) (*(volatile const unsigned long *) (_a)) +#define readl(_a) (*(volatile const unsigned int *) (_a)) #define writeb(_v, _a) (*(volatile unsigned char *) (_a) = (_v)) #define writew(_v, _a) (*(volatile unsigned short *) (_a) = (_v)) -#define writel(_v, _a) (*(volatile unsigned long *) (_a) = (_v)) +#define writel(_v, _a) (*(volatile unsigned int *) (_a) = (_v)) -static inline unsigned long inl(int port) +static inline unsigned int inl(int port) { unsigned long val; __asm__ __volatile__("inl %w1, %0" : "=a"(val) : "Nd"(port)); @@ -60,7 +60,7 @@ static inline unsigned char inb(int port) return val; } -static inline void outl(unsigned long val, int port) +static inline void outl(unsigned int val, int port) { __asm__ __volatile__("outl %0, %w1" : : "a"(val), "Nd"(port)); } |